Skip to content
The Encyclopedia of Horology

Pocket watch · Railroad pocket watch

Nomos 24H Railroad Pocket Watch

Partially verified

This antique pocket watch is reported by the source as branded Nomos on the dial and cuvette, dating to circa 1910. The case is constructed from 0.800 solid silver, stamped with case serial number 802405 along with Swiss and German silver purity hallmarks, and features an engraved floral and scroll pattern on the case back. It displays an enameled railroad dial configured with black Arabic numerals 1 through 12, an inner red track showing hours 13 through 24, and a sub-seconds register at 6 o'clock. The watch is powered by a gilded Swiss-made manual-wind movement bearing serial number 188812 and uses a crown-wind, pin-set mechanism.

Front view of the Nomos pocket watch with its hinged front cover open, displaying the 24-hour dial and hands
Front view of the Nomos pocket watch with its hinged front cover open, displaying the 24-hour dial and hands — Catawiki. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.catawiki.com
Category
Pocket watch · Railroad pocket watch
Maker / attribution
Nomos
Reference
Not recorded
Catalogue / lot identifier
105731661
Source-reported date
c. 1910
Country
Switzerland
Source-reported serial
802405

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case Construction and Hallmarking

The timepiece is housed in an 0.800 solid silver case featuring an engraved floral and scroll pattern on the case back. The interior is reported to contain Swiss and German silver purity hallmarks and is stamped with case serial number 802405.

While the source describes the object as an open-face watch, photographic documentation shows a hinged cover, suggesting a hunter-case configuration.

Evidence for this section
  • “Crafted from 0.800 solid silver”
  • “The case back is decorated with an intricate floral and scroll engraved pattern.”
  • “The interior shows official Swiss (Grouse) and German silver purity hallmarks, bearing case serial number 802405.”

Dial Configuration

The watch features a white porcelain enamel dial with a 24-hour railroad scale. The display includes black Arabic numerals 1–12, an inner red track for the 13–24 hour cycle, and a sub-seconds register at 6 o'clock.

The dial bears the cursive 'Nomos' signature below the 24 mark and is fitted with gold-toned hands.

Evidence for this section
  • “White porcelain enamel dial in good condition with a "Railroad" 24-hour scale.”
  • “Features large black Arabic numerals (1–12), an inner red 24-hour track (13–24), and the cursive "Nomos" script signature below the 24 mark.”
  • “Sub-seconds register at 6 o'clock and original gold-toned hands.”

Movement and Mechanism

The internal mechanism is a Swiss-made, manual-wind movement featuring gilded plates. It is stamped with serial number 188812 near the balance wheel.

The watch employs a crown-wind and pin-set mechanism, the latter requiring a small button near the crown for time adjustment.

Evidence for this section
  • “Clean Swiss-made manual-wind movement with gilded plates, stamped with serial number 188812 near the balance wheel.”
  • “Crown-wind and pin-set mechanism (small button near the crown).”

Open research questions

  • What is the specific manufacturer identity of the movement with serial number 188812?
  • Do the specified Swiss (Grouse) and German silver hallmarks provide a definitive manufacturing origin or date range?
  • Does the hinged front cover represent a factory standard for this specific Nomos reference?

Source evidence

Recorded claims and source quotations for Nomos 24H Railroad Pocket Watch
FieldSource-reported valueSource quotation
Case Material0.800 solid silver“Crafted from 0.800 solid silver with a total watch weight of 91.64 grams.”
Case Serial Number802405“bearing case serial number 802405.”
Movement Serial Number188812“stamped with serial number 188812 near the balance wheel.”
Dial ScaleRailroad 24-hour scale“Features large black Arabic numerals (1–12), an inner red 24-hour track (13–24), and the cursive "Nomos" script signature below the 24 mark.”
Time SettingPin-set mechanism“Crown-wind and pin-set mechanism (small button near the crown).”
Total Weight91.64 grams“total watch weight of 91.64 grams.”

Visible details

  • Hinged outer front cover open displaying the dial and an interior stamping ending in '2405'
  • White enamel dial with a discolored central disc containing the inner red 13–24 numerals
  • Sub-seconds register positioned at 6 o'clock with black calibrations
  • Winding crown and bow located at the 3 o'clock position
  • Gold-toned hands and cursive 'Nomos' script below the 24 mark

Research qualifications

  • The source describes the watch as open-face, but the photograph clearly shows a hinged front cover characteristic of a hunter case.
  • The movement and cuvette inscriptions are not visible in the supplied photograph.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Nomos - 24H Railroad-Floral Engraved 0.800 Silver Case - 802405 - 1900-1949 - auction online Catawiki

Reviewed 2026-10-21 · Record d15a1ec5c0

Terms in this record

Glossary explanations for terms named in this object’s record.

Other railroad pocket watch records